urn:lsid:ibm.com:blogs:entries-12dd69c8-46de-4e9a-8cda-d1af7221b0a6WebSphere Peformance - Alexandre Polozoff's Point of View - Tags - classloader WebSphere Performance for not just the application server but also stack products12015-02-27T14:08:41-05:00IBM Connections - Blogsurn:lsid:ibm.com:blogs:entry-308996e9-707d-4c25-84d5-cbf8186f9b8dClassLoader.loadClass is slow and lots of threads hanging out therepolozoff110000N2A2activeComment Entriesapplication/atom+xml;type=entryLikes2012-05-04T19:23:01-04:002012-05-29T10:47:47-04:00
<div>Your application is slow. You get a thread dump and look in the javacore and see lots of threads is ClassLoader.loadClass() with one thread holding the lock. You need to check your FFDC logs and look for &quot;Too many open files.&quot; This means you haven't tuned the OS ulimit parameters and probably many others. Look in the <a href="http://pic.dhe.ibm.com/infocenter/wasinfo/v7r0/index.jsp?topic=%2Fcom.ibm.websphere.nd.multiplatform.doc%2Finfo%2Fae%2Fae%2Ftprf_tunelinux.html">InfoCenter</a> for performance tuning and operating systems and pick the page for your OS. This should be the first link in the InfoCenter you access after you install WebSphere Application Server.</div><div> </div><div>Edit: added link to the WAS v7 Infocenter page. </div>
Your application is slow. You get a thread dump and look in the javacore and see lots of threads is ClassLoader.loadClass() with one thread holding the lock. You need to check your FFDC logs and look for &quot;Too many open files.&quot; This means you...001700urn:lsid:ibm.com:blogs:entries-12dd69c8-46de-4e9a-8cda-d1af7221b0a6WebSphere Peformance - Alexandre Polozoff's Point of View2015-02-27T14:08:41-05:00